Roller shutter rod locking device for greenhouse and roller shutter system

Abstract

The utility model relates to the technical field of agricultural greenhouses, in particular to a roller shutter rod locking device and a roller shutter system for a greenhouse, a locking shell is fixedly mounted on two sides of the front end of the greenhouse, a roller shutter rod connection port is arranged on the locking shell and used for receiving a roller shutter rod, a locking mechanism is fixedly mounted in the locking shell and electrically connected with a power supply, and the locking mechanism is connected with the power supply. The pressure sensing assembly is fixedly installed in the locking shell and located below the roller shutter rod connection opening, and the pressure sensing assembly is electrically connected with the locking mechanism so that when the pressure sensing assembly is pressed by the roller shutter rod, the locking mechanism can be controlled to lock the roller shutter rod in the roller shutter rod connection opening. On the contrary, when the device is not pressed by the roller shutter rod any more, the locking mechanism is controlled to release the roller shutter rod, so that the lower end of the grass carpet, the heat preservation quilt or the sunshade net on the greenhouse is fixed, and the problem that the lower end of the grass carpet, the heat preservation quilt or the sunshade net is easily blown by wind and even lifted to fly is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural greenhouse technical field, concretely relates to a curtain rod locking device and curtain system for greenhouse. TECHNICAL BACKGROUND

[0002] Traditional greenhouse curtain machine mainly has two kinds: one is rear roller type curtain machine (also called rear wall fixed type, rear pull type or pull line type greenhouse curtain machine), another is shed surface self-propelled type curtain machine, wherein, the rear roller type curtain machine appears earliest in the market, and it is composed of gearbox, motor, roll rod and column support three parts, and the working principle of this curtain machine is that the main machine rotates the roll rod, the roll rod winds the pull rope, the pull rope pulls the straw mat or thermal blanket, and when the straw mat or thermal blanket is dropped, it is slid down along the shed surface slope by using its own weight, but when manual operation is out of control, it is difficult to effectively brake and causes safety accidents, and the shed surface self-propelled type curtain machine has the problem that when the thermal curtain is rolled up, it cannot be self-locked on the shed film due to its excessive weight and the gravity traction of the thermal blanket.

[0003] To solve the above problems, the self-locking device of the sunlit greenhouse curtain machine is announced in Chinese utility model patent with application number 201820559955.4, and its characteristics are: including motor and speed reducer, and input shaft and pulley installed on the motor, drive plate is sleeved on the shaft of the input shaft, the side of the drive plate is provided with a retaining plate, micro piston rod is connected at both ends of the drive plate, the end of the micro piston rod is fixedly installed on the shell of the motor, the shaft of the input shaft between the drive plate and the pulley is sleeved with a guide sleeve, the end of the guide sleeve is fixedly sleeved with a flange plate, the guide sleeve is sleeved with a locking disc through a spring, the both ends of the drive plate are hinged with lever blocks, the lever blocks are hinged with crank rods, the end of the crank rod is hinged with a lock block, the lock block and the lever block are installed on the retaining plate through a fixed shaft, the lock block is embedded between the flange plate and the locking disc, and synchronous stable locking under the intervention of the speed reducer is realized through transmission locking.

[0004] However, the above-mentioned prior art has the following technical problems: the device only solves the problem of braking and self-locking of the curtain machine on the shed film, but the straw mat, thermal blanket or sunshade net is usually directly arranged outside the greenhouse, and only one end is provided with a fixed structure, and the other end naturally droops, so as to wrap the outside of the greenhouse, so that in the case of severe weather, such as strong wind weather, the lower end of the straw mat, thermal blanket or sunshade net is easy to be blown by the wind or even lifted, and then the body is damaged, and even the straw mat, thermal blanket or sunshade net collides with the surface of the greenhouse, causing the greenhouse to be broken. UTILITY MODEL CONTENTS

[0005] Therefore, it is necessary to provide a greenhouse curtain rod locking device and a curtain system to fix the naturally hanging grass mat, heat preservation quilt or sunshade net.

[0006] In a first aspect, the utility model provides a greenhouse curtain locking device, which comprises a locking shell, a locking mechanism and a pressure sensing assembly.

[0007] The locking shell is provided with a curtain rod connecting port, is fixedly installed at the front end of the greenhouse on both sides and is installed at a position that can meet the requirement that the curtain rod of the curtain device can enter the curtain rod connecting port when the curtain rod is lowered to the bottom end of the greenhouse; the locking mechanism is fixedly installed in the locking shell and is electrically connected with the power supply; the pressure sensing assembly is fixedly installed in the locking shell below the curtain rod connecting port, is electrically connected with the locking mechanism and is used for monitoring the pressure information in real time, sending the pressure signal generated when the curtain rod is pressed to the locking mechanism, locking the curtain rod in the curtain rod connecting port when the pressure signal is received and releasing the curtain rod when the pressure signal disappears.

[0008] Preferably, the locking mechanism comprises a locking rod and a driving module, the driving module is fixedly installed in the locking shell and is electrically connected with the power supply, one end of the locking rod is in transmission connection with the driving module and the other end is a free end, so that the locking rod can be driven by the driving module to extend out of the locking shell or retract into the locking shell.

[0009] Preferably, the locking shell is in a cubic structure, one end of the locking shell is provided with a curtain rod connecting port penetrating through the side surface, one side of the curtain rod connecting port is provided with a locking rod outlet and the other side is provided with a locking rod inlet.

[0010] Preferably, the bottom of the locking shell is further provided with a fixing plate for fixing the locking shell to the ground by bolts.

[0011] Preferably, the greenhouse curtain rod locking device further comprises a connecting plate, one end of the connecting plate is rotatably installed on the locking shell and the other end is a free end, so that the connecting plate can be lapped on the greenhouse to guide the curtain rod to the connecting port.

[0012] Preferably, the bottom surface of the curtain rod connecting port is further provided with a through hole, the pressure sensing assembly comprises a sensing mechanism and a pressure adjusting mechanism, the sensing mechanism is fixedly installed below the curtain rod connecting port and is electrically connected with the driving module, so that the locking mechanism can be controlled to lock the curtain rod in the curtain rod connecting port after the sensing mechanism is pressed by the curtain rod or release the curtain rod when the sensing mechanism is no longer pressed by the curtain rod, and the pressure adjusting mechanism is installed above the sensing mechanism to adjust the pressure threshold of the sensing mechanism.

[0013] Preferably, the pressure regulating mechanism includes a pressure plate, a spring, and a nut. The pressure plate is provided with two guide posts with threads. The guide posts pass through through holes, allowing the pressure plate to be movably mounted above the sensing mechanism. The spring passes through the guide posts, with one end fixed to the locking housing and the other end pressing against the nut. The nut engages with the guide posts through threads, and the pressure threshold of the sensing mechanism is adjusted by rotating the nut.

[0014] Preferably, the greenhouse roller shutter locking device further includes a power supply device to supply power to the continuing drive module when a short circuit occurs.

[0015] Secondly, this utility model also provides a roller shutter system, including a roller shutter device and two of the above-mentioned roller shutter rod locking devices for greenhouses. The roller shutter device is fixedly installed on the greenhouse and is used to roll up or release straw mats, insulation blankets or shade nets. The roller shutter rod locking devices for greenhouses are fixedly installed on both sides of the front end of the greenhouse and are used to lock or release the roller shutter rods fixedly installed at the lower end of the straw mats, insulation blankets or shade nets.

[0016] Preferably, both the roller shutter device and the greenhouse roller shutter rod locking device are equipped with a control module, and the two are communicatively connected. This module is used to activate the greenhouse roller shutter rod locking device only after the roller shutter device has been activated, so as to prevent the greenhouse roller shutter rod locking device from releasing the roller shutter rod when the roller shutter device has not been activated.

[0017] The aforementioned greenhouse roller shutter locking device includes a locking housing, a locking mechanism, and a pressure sensing component. The locking housing is fixedly installed on both sides of the front end of the greenhouse. The locking housing is provided with a roller shutter connection port for receiving the roller shutter. The locking mechanism is fixedly installed in the locking housing and electrically connected to a power source. The pressure sensing component is fixedly installed in the locking housing, located below the roller shutter connection port. The pressure sensing component is electrically connected to the locking mechanism so that when the pressure sensing component is pressed by the roller shutter, it controls the locking mechanism to lock the roller shutter in the roller shutter connection port; conversely, when it is no longer pressed by the roller shutter, it controls the locking mechanism to release the roller shutter. This achieves the fixation of the lower end of the straw mat, insulation blanket, or shade net on the greenhouse, effectively solving the problem that the lower end of the straw mat, insulation blanket, or shade net is easily blown away or even blown off by the wind, leading to damage to the main body, or even impact with the surface of the greenhouse, causing the greenhouse to crack. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the roller shutter system.

[0019] Figure 2 This is a partially enlarged schematic diagram of the roller shutter system.

[0020] Figure 3This is a schematic diagram of the structure of a roller shutter locking device for greenhouses.

[0021] Figure 4 A schematic diagram of the internal structure of a greenhouse roller shutter locking device.

[0022] Figure 5 This is a schematic diagram of the locking housing.

[0023] Figure 6 This is a schematic diagram of the locking shell structure from another perspective.

[0024] Figure 7 This is a schematic diagram of the pressure sensing component.

[0025] In the diagram: Roller blind system 10, greenhouse roller blind rod locking device 11, locking housing 111, roller blind rod connector 1111, locking rod outlet 1112, locking rod insertion 1113, through hole 1114, fixing plate 1115, locking mechanism 112, locking rod 1121, drive module 1122, pressure sensing component 113, sensing mechanism 1131, pressure adjustment mechanism 1132, pressure plate 11321, guide column 11322, spring 11323, nut 11324, connector plate 114, roller blind device 12, roller blind rod 13. Detailed Implementation

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Please refer to Figures 1 to 7 This utility model provides a greenhouse roller shutter rod locking device 11, which is used to lock or release the roller shutter rod 13 at the lower end of straw mat, thermal insulation blanket or shade net, and includes a locking housing 111, a locking mechanism 112 and a pressure sensing component 113.

[0028] The locking housing 111 is provided with a roller shutter rod connection port 1111. The locking housing 111 is fixedly installed on both sides of the front end of the greenhouse, and the installation position is such that the roller shutter rod 13 of the roller shutter device 12 can enter the roller shutter rod connection port 1111 when it is lowered to the bottom of the greenhouse. The locking mechanism 112 is fixedly installed in the locking housing 111 and electrically connected to the power supply. The pressure sensing component 113 is fixedly installed in the locking housing 111, located below the roller shutter rod connection port 1111. The pressure sensing component 113 is electrically connected to the locking mechanism 112 and is used to monitor pressure information in real time, so as to send the pressure signal generated when it is pressed by the roller shutter rod 13 to the locking mechanism 112. The locking mechanism 112 is used to lock the roller shutter rod 13 in the roller shutter rod connection port 1111 when it receives the pressure signal, and to release the roller shutter rod when the pressure signal disappears.

[0029] In this embodiment, the greenhouse roller shutter rod locking device 11 is particularly suitable for locking the roller shutter rod 13 of the self-propelled roller shutter machine on the greenhouse surface. For the rear roller shutter machine, it is necessary to set the roller shutter rod 13 (crossbar) at the lower end of the straw mat, insulation blanket or shade net. This achieves the fixation of the lower end of the straw mat, insulation blanket or shade net on the greenhouse, effectively solving the problem that the lower end of the straw mat, insulation blanket or shade net is easily blown away or even blown off by the wind, which leads to damage to the main body, or even collision with the surface of the greenhouse, causing the greenhouse to crack.

[0030] Furthermore, the locking mechanism 112 includes a locking rod 1121 and a drive module 1122. The drive module 1122 is fixedly installed in the locking housing 111 and electrically connected to a power source. One end of the locking rod 1121 is connected to the drive module 1122 for transmission, and the other end is a free end, so that the locking rod 1121 can be driven by the drive module 1122 to extend out of or retract from the locking housing 111.

[0031] In this embodiment, the drive module 1122 is a push rod motor, which has a simple structure and is easy to install.

[0032] In another embodiment, the drive module 1122 can also be a hydraulic cylinder, a pneumatic cylinder, or a motor. Hydraulic cylinder drives offer high output force and good control performance, making them suitable for applications requiring significant thrust. Pneumatic cylinder drives, with their fast response, simple structure, and easy maintenance, are suitable for environments with frequent operation. Motor drives, with their precise control and long lifespan, are suitable for applications requiring precise position control. By selecting a suitable drive module 1122, the extension and retraction speeds of the locking lever 1121 can be adjusted according to actual needs, thereby meeting the requirements under different working conditions.

[0033] Furthermore, the locking housing 111 has a cubic structure. One end of the locking housing 111 is provided with a roller shutter rod connection port 1111 that extends through the side. One side of the roller shutter rod connection port 1111 is provided with a locking rod outlet 1112, and the other side is provided with a locking rod insertion port 1113.

[0034] In this embodiment, the placement of the insertion and outlet of the roller shutter rod 13 ensures that the roller shutter rod 13 is stable and easy to operate within the locking housing 111. Through this structural design, the locking device of the roller shutter rod 13 can effectively fix the roller shutter rod 13 and prevent it from shifting under the action of wind or other external forces, thereby ensuring the stable operation of the greenhouse roller shutter system 10.

[0035] Furthermore, a fixing plate 1115 is provided at the bottom of the locking housing 111 to fix the locking housing 111 to the ground by bolts.

[0036] In this embodiment, a concrete foundation is buried in the ground, and the locking housing 111 is securely fixed to both sides of the front end of the greenhouse using bolts.

[0037] Furthermore, the greenhouse roller shutter rod locking device 11 also includes a connecting plate 114, one end of which is rotatably mounted on the locking housing 111, and the other end is a free end, so as to overlap the greenhouse and guide the roller shutter rod 13 to the connecting port.

[0038] Furthermore, a through hole 1114 is also provided on the bottom surface of the roller shutter rod connection port 1111. The pressure sensing component 113 includes a sensing mechanism 1131 and a pressure regulating mechanism 1132. The sensing mechanism 1131 is fixedly installed below the roller shutter rod connection port 1111 and is electrically connected to the drive module 1122. When the roller shutter rod 13 is pressed, the locking mechanism 112 is controlled to lock the roller shutter rod 13 in the roller shutter rod connection port 1111, or when the roller shutter rod 13 is no longer pressed, the locking mechanism 112 is controlled to release the roller shutter rod 13. The pressure regulating mechanism 1132 is installed above the sensing mechanism 1131 to adjust the pressure threshold of the sensing mechanism 1131 and avoid accidental activation.

[0039] In this embodiment, the sensing mechanism 1131 is a limit switch. When the roller shutter rod 13 moves to a predetermined position, the limit switch is triggered, thereby sending a signal to the drive module 1122. After receiving the signal, the drive module 1122 locks the roller shutter rod 13.

[0040] Furthermore, the pressure regulating mechanism 1132 includes a pressure plate 11321, a spring 11323, and a nut 11324. The pressure plate 11321 is provided with two guide posts 11322, and the guide posts 11322 are provided with threads. The guide posts 11322 pass through the through hole 1114, so that the pressure plate 11321 is movably mounted above the sensing mechanism 1131. The spring 11323 passes through the guide post 11322, one end is fixed to the locking housing 111, and the other end presses against the nut 11324. The nut 11324 is engaged with the guide post 11322 through threads. The pressure threshold of the sensing mechanism 1131 is adjusted by rotating the nut 11324.

[0041] Furthermore, the greenhouse roller shutter locking device 11 also includes a power supply device to supply power to the continuing drive module 1122 in the event of a short circuit.

[0042] In this embodiment, the power supply device includes one or more battery packs designed to automatically switch in the event of a main power failure, ensuring the continuous operation of the locking device. Furthermore, the power supply device is equipped with a charging circuit to charge the battery packs while the main power supply is operating normally, maintaining sufficient battery charge. To improve system reliability, the power supply device may also include safety functions such as overcharge protection, over-discharge protection, and short-circuit protection, ensuring that the system can safely disconnect the power supply under any abnormal circumstances, preventing equipment damage or safety accidents.

[0043] Of course, in order to ensure the stability and durability of the greenhouse curtain rod locking device 11, the locking device is made of corrosion-resistant materials and is designed with a waterproof and dustproof structure to adapt to the special working environment of the greenhouse.

[0044] This utility model also provides a roller shutter system 10, including a roller shutter device 12 and two of the above-mentioned roller shutter rod locking devices 11 for greenhouses. The roller shutter device 12 is fixedly installed on the greenhouse and is used to roll up or release the straw mat, insulation blanket or shade net. The roller shutter rod locking devices 11 for greenhouses are fixedly installed on both sides of the front end of the greenhouse and are used to lock or release the roller shutter rod 13 fixedly installed at the lower end of the straw mat, insulation blanket or shade net.

[0045] Furthermore, both the roller shutter device 12 and the greenhouse roller shutter rod locking device 11 are equipped with control modules, and the two are connected in communication. The control modules are used to activate the greenhouse roller shutter rod locking device 11 after the roller shutter device 12 is activated, so as to prevent the greenhouse roller shutter rod locking device 11 from releasing the roller shutter rod 13 when the roller shutter device 12 is not activated.

[0046] In this invention, the lower end of the roller shutter rod 13 of the straw mat, thermal blanket, or shade net is guided to the roller shutter rod connection port 1111 via the connecting plate 114 and falls into the connection port 1111. Under the action of gravity, the roller shutter rod 13 presses against the pressure plate 11321, causing it to move downwards and further press against the sensing mechanism 1131. The sensing mechanism 1131 is then triggered, sending a signal to the drive module 1122. The drive module 1122 receives the signal. The rear drive locking lever 1121 extends and inserts into the locking lever socket 1113 to lock the roller shutter rod 13 in the roller shutter rod connector 1111; conversely, when the roller shutter rod 13 is pulled upward, the roller shutter rod 13 disengages from the sensing mechanism 1131, the sensing mechanism 1131 resets and sends a signal to the drive module 1122, then the drive module 1122 starts, driving the locking lever 1121 to retract from the locking lever socket 1113 to release the roller shutter rod 13.

[0047] The modules or units in the device of this utility model embodiment can be merged, divided, and deleted according to actual needs. The above-disclosed embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this utility model still fall within the scope of this utility model.

Claims

1. A locking device for a greenhouse roller shutter rod, characterized in that it includes a locking housing, a locking mechanism, and a pressure sensing component; The locking housing is provided with a roller shutter rod connection port. The locking housing is fixedly installed on both sides of the front end of the greenhouse, and the installation position is such that the roller shutter rod of the roller shutter device can enter the roller shutter rod connection port when it is lowered to the bottom of the greenhouse. The locking mechanism is fixedly installed in the locking housing and electrically connected to the power supply. The pressure sensing component is fixedly installed in the locking housing, located below the roller shutter rod connection port. The pressure sensing component is electrically connected to the locking mechanism and is used to monitor pressure information in real time, so as to send the pressure signal generated when it is pressed by the roller shutter rod to the locking mechanism. The locking mechanism is used to lock the roller shutter rod in the roller shutter rod connection port when it receives the pressure signal, and to release the roller shutter rod when the pressure signal disappears.

2. The greenhouse roller shutter rod locking device according to claim 1, characterized in that: the locking mechanism includes a locking rod and a driving module, the driving module is fixedly installed in the locking housing and electrically connected to a power source, one end of the locking rod is connected to the driving module for transmission, and the other end is a free end, so as to drive the locking rod to extend out of or retract from the locking housing through the driving module.

3. The greenhouse roller shutter rod locking device according to claim 2 is characterized in that: the locking housing is a cubic structure, one end of the locking housing is provided with a roller shutter rod connection port that passes through the side, one side of the roller shutter rod connection port is provided with a locking rod outlet, and the other side is provided with a locking rod insertion port.

4. The greenhouse roller shutter locking device according to claim 3 is characterized in that: a fixing plate is further provided at the bottom of the locking housing for fixing the locking housing to the ground by bolts.

5. The greenhouse roller shutter locking device according to claim 4 is characterized in that: the greenhouse roller shutter locking device further includes a connecting plate, one end of which is rotatably mounted on the locking housing, and the other end is a free end, so as to overlap the greenhouse and guide the roller shutter to the connecting port.

6. The greenhouse roller shutter rod locking device according to claim 2, characterized in that: a through hole is further provided on the bottom surface of the roller shutter rod connection port; the pressure sensing component includes a sensing mechanism and a pressure regulating mechanism; the sensing mechanism is fixedly installed below the roller shutter rod connection port and electrically connected to the drive module, so as to control the locking mechanism to lock the roller shutter rod in the roller shutter rod connection port after being pressed by the roller shutter rod, or to control the locking mechanism to release the roller shutter rod when no longer being pressed by the roller shutter rod; the pressure regulating mechanism is installed above the sensing mechanism to adjust the pressure threshold of the sensing mechanism.

7. The greenhouse roller shutter locking device according to claim 6, characterized in that: the pressure adjustment mechanism includes a pressure plate, a spring and a nut, the pressure plate is provided with two guide columns, the guide columns are provided with threads, the guide columns pass through the through hole, so that the pressure plate is movably installed above the sensing mechanism, the spring passes through the guide column, one end is fixed to the locking housing, and the other end abuts against the nut, the nut is engaged with the guide column through the thread, and the pressure threshold of the sensing mechanism is adjusted by rotating the nut.

8. The greenhouse roller shutter locking device according to claim 1, characterized in that: the greenhouse roller shutter locking device further includes a power supply device to supply power to the continuing drive module when a short circuit occurs in the circuit.

9. A roller shutter system, characterized in that it includes a roller shutter device and two locking devices for roller shutter rods in greenhouses as described in any one of claims 1 to 8, wherein the roller shutter device is fixedly installed on the greenhouse for rolling up or releasing straw mats, insulation blankets, or shade nets, and the locking devices for roller shutter rods in greenhouses are fixedly installed on both sides of the front end of the greenhouse for locking or releasing roller shutter rods fixedly installed at the lower end of the straw mats, insulation blankets, or shade nets.

10. The roller shutter system according to claim 9, characterized in that: both the roller shutter device and the greenhouse roller shutter rod locking device are provided with a control module, and the two are communicatively connected, for activating the greenhouse roller shutter rod locking device after the roller shutter device is activated, so as to prevent the greenhouse roller shutter rod locking device from releasing the roller shutter rod when the roller shutter device is not activated.

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